IDM-VNT4208

Overview:

The IDM-VNT4208 Field Optical Fiber Integrated Service Access Device is specially designed by Beijing Ruiguang Jiyuan Digital Technology Co., Ltd. for military field communication. The device integrates an optical transmission unit and a PCM multiplexing unit, featuring a shockproof chassis design, and provides service interfaces suitable for military field operations.

The field optical terminal is developed by our company using internationally advanced integrated circuits, programmable logic circuits, and high-speed microprocessors. Through various service interface cards, voice, low-speed data, and video signals are aggregated into a standard 2M interface. The 2M signal, video signals, transparent E1 signals, and wire-speed 100M Ethernet signals are then multiplexed onto a 1.25G optical transmission channel using Time Division Multiplexing (TDM) technology. The plug-and-play design makes installation simple and easy, requiring no on-site adjustment. Both the optical module and core circuits adopt standard components with high stability. All optical and electrical interfaces comply with international standards, making the device suitable for various working environments.

Product Features:

• Powerful network management capability with real-time online monitoring;
• Excellent shock and interference resistance, suitable for military field operations;
• 4 shared 100M Ethernet interfaces;
• 4/2 channels of high-definition uncompressed raw video signals, 2 channels of bidirectional high-fidelity audio;
• Compatible with PAL, NTSC, and SECAM video formats;
• Provides a rich variety of user interfaces, configurable with multiple voice and data service cards;
• High scalability, configurable with voice interface cards such as FXS, FXO, hotline telephone card, magneto telephone card, EM2/4 card, etc.; data service cards such as V.24, V.35, etc.;
• Complete alarm functions with front panel LED alarms, audible alarms, and alarm mute function;
• Supports point-to-point use, and can also work with centralized card-type equipment to form a point-to-multipoint star network.

Technical Specifications:

Optical Interface

Interface Type	FC (SC and others customizable)	Fiber Mode	Single-mode (multi-mode optional)
Receiver TX/RX Rate	1.25Gbps/1.25Gbps	Receiver TX/RX Wavelength	1310nm/1550nm
Transmitter TX/RX Rate	1.25Gbps/1.25Gbps	Transmitter TX/RX Wavelength	1550nm/1310nm
Optical Output Power	-9~-1dBm	Receiver Sensitivity	Better than -21dBm
Transmission Distance	20Km, optional long-distance optical modules are available for extended fiber transmission.

Video

Interface Type	BNC	Luminance Nonlinearity	<3%
Video Sampling Resolution	8bit	Video Bandwidth	0Hz~6.5MHz
Differential Phase (DP)	<0.7o	Differential Gain (DG)	<0.7%
Input Overload Voltage	1.5VP-P (Typical)	Input/Output Voltage	1VP-P (Typical)
Input/Output Impedance	75Ω (Unbalanced)	Video Signal-to-Noise Ratio	≥70dB (Weighted)

E1 Interface

Line Rate	2048Kbps	Line Code	HDB3
Standard Protocol	Supports ITU-T G.703	Impedance	75Ω/120Ω
Frame Structure	PCM30/31	Signaling	Channel-Associated Signaling

Ethernet

Interface Type	RJ-45	Transmission Rate	10M/100M Auto-Negotiation
Standard Protocol	Supports IEEE802.3	Operating Mode	Full/Half Duplex/Auto-Negotiation

FXO/FXS Interface

Audio Range	300Hz~3400Hz	Compression Rate	ITU G.711 A-law
Impedance	Triple complex impedance 200Ω+560Ω//0.1μF	Loop Current	25mA/channel

High-Fidelity Audio

Interface Type	RJ45	Audio Sampling Bit Depth	24bit
Input/Output Impedance	ADC:100KΩ/DAC:10KΩ	Input/Output Voltage	1.5VP-P (typical)
Audio Sampling Rate	32KHz	Audio Signal-to-Noise Ratio	≥90dB
Audio Bandwidth	20Hz~20KHz	Total Harmonic Distortion	<1%

Data

Interface Type	RJ-45
Data Type	RS-232, RS422 (4-wire), RS485 (2-wire)

Power Supply and Consumption

Power Supply

AC220V/DC-48V

Power Consumption

≤50W

Environmental Conditions

Operating Temperature	-15 oC ~+65oC	Storage Temperature	-25oC~+75oC
Industrial Grade	-40oC~ +85 oC	Relative Humidity	0~95% (non-condensing)

Product Dimensions

Length×Depth×Height

440×230×45 (mm)

Optical Transceiver Model List

Model	Description
IDM-VNT8208	4-channel bidirectional video, 2-channel bidirectional audio
IDM-VNT4208	2-channel bidirectional video, 2-channel bidirectional audio

Application Example: